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City of Santa Ana 7-Eleven Convenience Store and Service Station Project Mitigation Monitoring and Reporting Program FirstCarbon Solutions 13 Y:\Publications\Client (PN-JN)\0327\03270041\MMRP\03270041 City of Santa Ana 7-Eleven MMRP.docx Table 1 (cont.): 7-Eleven Convenience Store and Service Station Project Mitigation Monitoring and Reporting Program Mitigation Measures Method of Verification Timing of Verification Responsible for Verification Verification of Completion Date Initial MM GEO-6: Percolation Testing Final percolation testing shall be performed in as graded conditions so that effects from soil compaction are incorporated in the test results. Conduct on-site inspections During and after grading City of Santa Ana MM GEO-7: Post-Investigation Final project grading and foundation plans, foundation details and specifications shall be reviewed by a Geotechnical Engineer prior to construction to check that the intent of the recommendations presented herein have been applied to the design. Following review of plans and specifications, observation during construction shall be performed to correlate the findings of this exploration with the actual subsurface conditions exposed. Review and approval of construction plans Prior to construction activities City of Santa Ana 9. Hazards and Hazardous MaterialsMM HAZ-1: Environmental personnel shall be present on-site when the excavation for the new USTs are completed to establish a baseline at the time of occupancy of the 7-Eleven convenience store. Confirm the presence of an environmental personnel During UST excavation City of Santa Ana, Department of Toxic Substance Control (DTSC) 13. NoiseMM NOI-1: To reduce potential construction noise impacts, the following multi-part mitigation measure shall be implemented for the proposed project: • The construction contractor shall ensure that all equipmentdriven by internal combustion engines shall be equipped with mufflers, which are in good condition and appropriate for the equipment. • The construction contractor shall ensure that unnecessaryidling of internal combustion engines (i.e., idling in excess of 5 minutes) is prohibited. Conduct on-site inspections to ensure that the mitigation measures have been implemented. During construction activities City of Santa Ana 1-27